728069728
728,069,728 is an even composite number composed of three prime numbers multiplied together.
728069728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.
Prime factorization of 728069728:
25 × 2341 × 9719
(2 × 2 × 2 × 2 × 2 × 2341 × 9719)See below for interesting mathematical facts about the number 728069728 from the Numbermatics database.
Names of 728069728
- Cardinal: 728069728 can be written as Seven hundred twenty-eight million, sixty-nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 7.28069728 × 108
Factors of 728069728
Divisors of 728069728
- Number of divisors d(n): 24
- Complete list of divisors:
- Sum of all divisors σ(n): 1434147120
- Sum of proper divisors (its aliquot sum) s(n): 706077392
- 728069728 is a deficient number, because the sum of its proper divisors (706077392) is less than itself. Its deficiency is 21992336
Bases of 728069728
- Binary: 1010110110010101110110011000002
- Hexadecimal: 0x2B657660
- Base-36: C1H274
Squares and roots of 728069728
- 728069728 squared (7280697282) is 530085528829993984
- 728069728 cubed (7280697283) is 385939226791989878172516352
-
The
square root of 728069728 is 26982.7672413339 -
The
cube root of 728069728 is 899.6170090595
Scales and comparisons
How big is 728069728?- 728,069,728 seconds is equal to 23 years, 7 weeks, 5 days, 17 hours, 35 minutes, 28 seconds.
-
To count from 1 to 728,069,728 would take you about thirty-four years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 728069728 cubic inches would be around 75 feet tall.
Recreational maths with 728069728
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